The modeling of the functional model has been researched by using case-based reasoning (CBR) in conceptual design. On
the basis of the describing of the functional model and the coding of the product functionthe functional nodes and the edge have been
matched. The functional model which has the most high similarity has been searchedthen the nodes and edges have been modified to
meet the design require. Based on the above two kinds of technology and follow the design principle of multi-agent cooperation solving
system and CBR working procedure, a multi-agent system architecture which adopt a strategy of task harmonize and based on hybrid
structure is put forward. The functional model can be established to meet the companys ability in the conceptual design stage by using
the methods in this paper.